spi: spidev_test: Added verbose output

Signed-off-by: Adrian Remonda <adrianremonda@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 9 insertions, 1 deletions

diff --git a/Documentation/spi/spidev_test.c b/Documentation/spi/spidev_test.c
index 9cb09184a3d6..4b6a3803638b 100644
--- a/Documentation/spi/spidev_test.c
+++ b/Documentation/spi/spidev_test.c
@@ -35,6 +35,7 @@ static uint32_t mode;
 static uint8_t bits = 8;
 static uint32_t speed = 500000;
 static uint16_t delay;
+static int verbose;
 
 static void hex_dump(const void *src, size_t length, size_t line_size, char *prefix)
 {
@@ -104,6 +105,8 @@ static void transfer(int fd)
         if (ret < 1)
                 pabort("can't send spi message");
 
+        if (verbose)
+                hex_dump(tx, ARRAY_SIZE(tx), 32, "TX");
         hex_dump(rx, ARRAY_SIZE(rx), 32, "RX");
 }
 
@@ -120,6 +123,7 @@ static void print_usage(const char *prog)
              "  -L --lsb      least significant bit first\n"
              "  -C --cs-high  chip select active high\n"
              "  -3 --3wire    SI/SO signals shared\n"
+             "  -v --verbose  Verbose (show tx buffer)\n"
              "  -N --no-cs    no chip select\n"
              "  -R --ready    slave pulls low to pause\n"
              "  -2 --dual     dual transfer\n"
@@ -144,12 +148,13 @@ static void parse_opts(int argc, char *argv[])
                         { "no-cs",   0, 0, 'N' },
                         { "ready",   0, 0, 'R' },
                         { "dual",    0, 0, '2' },
+                        { "verbose", 0, 0, 'v' },
                         { "quad",    0, 0, '4' },
                         { NULL, 0, 0, 0 },
                 };
                 int c;
 
-                c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR24", lopts, NULL);
+                c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR24:v", lopts, NULL);
 
                 if (c == -1)
                         break;
@@ -188,6 +193,9 @@ static void parse_opts(int argc, char *argv[])
                 case 'N':
                         mode |= SPI_NO_CS;
                         break;
+                case 'v':
+                        verbose = 1;
+                        break;
                 case 'R':
                         mode |= SPI_READY;
                         break;